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bcp updates for single file copies

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This commit is contained in:
Chris Mason 2008-05-02 16:12:02 -04:00 committed by David Woodhouse
parent a94b1455aa
commit aaf38b3ebd
1 changed files with 68 additions and 37 deletions
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105
bcp
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@ -18,22 +18,32 @@
import sys, os, stat, fcntl
from optparse import OptionParser
def copylink(srcname, dst, filename, statinfo):
dstname = os.path.join(dst, filename)
def copylink(srcname, dst, filename, statinfo, force_name):
dstname = os.path.join(dst, force_name or filename)
if not os.path.exists(dstname):
link_target = os.readlink(srcname)
os.symlink(link_target, dstname)
def copydev(srcname, dst, filename, statinfo):
def copydev(srcname, dst, filename, statinfo, force_name):
devbits = statinfo.st_mode & (stat.S_IFBLK | stat.S_IFCHR)
mode = stat.S_IMODE(statinfo.st_mode) | devbits
dstname = os.path.join(dst, filename)
dstname = os.path.join(dst, force_name or filename)
if not os.path.exists(dstname):
os.mknod(dstname, mode, statinfo.st_rdev)
def copyfile(srcname, dst, filename, statinfo):
def copyfile(srcname, dst, filename, statinfo, force_name):
written = 0
dstname = os.path.join(dst, filename)
dstname = os.path.join(dst, force_name or filename)
st_mode = statinfo.st_mode
if stat.S_ISLNK(st_mode):
copylink(srcname, dst, part, statinfo, None)
return
elif stat.S_ISBLK(st_mode) or stat.S_ISCHR(st_mode):
copydev(srcname, dst, part, statinfo, None)
return
elif not stat.S_ISREG(st_mode):
return
try:
os.unlink(dstname)
@ -85,46 +95,67 @@ if options.link and options.copy:
options.link = False
src = args[0]
dst = args[1]
total_args = len(args)
src_args = total_args - 1
orig_dst = args[-1]
if not os.path.exists(dst):
os.makedirs(dst)
if src_args > 1:
if not os.path.exists(orig_dst):
os.makedirs(orig_dst)
if not os.path.isdir(orig_dst):
sys.stderr.write("Destination %s is not a directory\n" % orig_dst)
exit(1)
iter = os.walk(src, topdown=True)
for srci in xrange(0, src_args):
src = args[srci]
if os.path.isfile(src):
statinfo = os.lstat(src)
force_name = None
if src_args == 1:
if not os.path.isdir(orig_dst):
force_name = os.path.basename(orig_dst)
orig_dst = os.path.dirname(orig_dst) or '.'
copyfile(src, orig_dst, os.path.basename(src), statinfo, force_name)
continue
for (dirpath, dirnames, filenames) in iter:
for x in dirnames:
srcname = os.path.join(dirpath, x)
statinfo = os.lstat(srcname)
if src_args > 1 or os.path.exists(orig_dst):
dst = os.path.join(orig_dst, os.path.basename(src))
else:
dst = orig_dst
if srcname.startswith(src):
part = srcname[len(src) + 1:]
if not os.path.exists(dst):
os.makedirs(dst)
statinfo = os.stat(src)
os.chmod(dst, stat.S_IMODE(statinfo.st_mode))
os.chown(dst, statinfo.st_uid, statinfo.st_gid)
iter = os.walk(src, topdown=True)
if stat.S_ISLNK(statinfo.st_mode):
copylink(srcname, dst, part, statinfo)
continue
for (dirpath, dirnames, filenames) in iter:
for x in dirnames:
srcname = os.path.join(dirpath, x)
statinfo = os.lstat(srcname)
dst_dir = os.path.join(dst, part)
if not os.path.exists(dst_dir):
os.makedirs(dst_dir)
if srcname.startswith(src):
part = srcname[len(src) + 1:]
os.chmod(dst_dir, stat.S_IMODE(statinfo.st_mode))
os.chown(dst_dir, statinfo.st_uid, statinfo.st_gid)
if stat.S_ISLNK(statinfo.st_mode):
copylink(srcname, dst, part, statinfo, None)
continue
for f in filenames:
srcname = os.path.join(dirpath, f)
if srcname.startswith(src):
part = srcname[len(src) + 1:]
dst_dir = os.path.join(dst, part)
if not os.path.exists(dst_dir):
os.makedirs(dst_dir)
statinfo = os.lstat(srcname)
st_mode = statinfo.st_mode
os.chmod(dst_dir, stat.S_IMODE(statinfo.st_mode))
os.chown(dst_dir, statinfo.st_uid, statinfo.st_gid)
if stat.S_ISLNK(st_mode):
copylink(srcname, dst, part, statinfo)
for f in filenames:
srcname = os.path.join(dirpath, f)
if srcname.startswith(src):
part = srcname[len(src) + 1:]
statinfo = os.lstat(srcname)
copyfile(srcname, dst, part, statinfo, None)
elif stat.S_ISBLK(st_mode) or stat.S_ISCHR(st_mode):
copydev(srcname, dst, part, statinfo)
elif stat.S_ISREG(st_mode):
copyfile(srcname, dst, part, statinfo)